VDub is just for visual check it is topfield or bottom field interlaced. After QTGMC deinterlacing in Hybrid check the 720x480 when you have this size, should it really displayed as aspect ratio 1.5? Maybe it was made for 16:9 or 4:3
When it should be played as 16:9 resize 720x480 to 864x486, which is codec friendly gives no floating points, gives equal numbers and is exactly 16:9. When it should be 4:3 resize 720x480 to 720x540, then import this into TVAI
